The word songwriter is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 16
Highest Scoring Words With Friends™ Play In The Letters songwriter
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Seven Letter Word Alert: (36 words)
girners, goiters, goitres, goriest, grister, growers, ignores, ironers, norites, orients, regions, regrown, regrows, resting, ringers, rioters, roister, snorter, snowier, sorting, stewing, stinger, stonier, storing, stowing, triones, twiners, twinges, twonies, wigeons, wingers, winters, worries, wringer, writers, wronger